Threats close Grijalva's district offices

Rep. Raul Grijalva (D-Ariz.) has closed his Arizona offices after a man called and threatened to “blow everyone’s head off,” his office said Friday.

The man, who called Grijalva’s Tucson office twice, said he would then go to the southern border and “shoot any Mexicans that tried to come across,” Grijalva spokesman Adam Sarvana said. Police were dispatched to protect the Tucson office, Sarvana said. He said no staffers have been injured and that the offices in Tucson and Yuma were closed as a precaution. They are set to reopen Monday.

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The threats come after Grijalva’s outspoken opposition to a tough anti-immigrant state law that the Arizona legislature passed this week. Under the proposed law, police must stop people on “reasonable suspicion” that they might be undocumented immigrants. If they’re not carrying a valid driver’s license or identification papers, police could make an arrest.

Grijalva has called on businesses to boycott Arizona if Gov. Jan Brewer (R) signs the bill into law. She is set to announce late Friday whether she will approve or veto the legislation.

The proposed law has ignited a national conversation about immigration. President Barack Obama weighed in Friday, saying the proposal was "misguided," and the White House has promised to “closely monitor the situation and examine the civil rights and other implications of this legislation.”

White House Press Secretary Robert Gibbs told reporters that could mean the Justice Department might look into potential "civil rights violations" against "legal residents" and citizens.